Strong Electronic Correlations in Layered Materials, in Nanoscale Dynamics, and in Actinide Complexes

层状材料、纳米动力学和锕系配合物中的强电子相关性

基本信息

批准号：
0213818
负责人：
John Marston
金额：
$ 50.4万
依托单位：
Brown University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2002
资助国家：
美国
起止时间：
2002-07-01 至 2007-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0213818&HistoricalAwards=false
关键词：
Strong Electronic Correlations Layered Materials

项目摘要

Sophisticated experimental studies of several classes of layered materials, as well as recent advances in the fabrication and characterization of nanostructures such as quantum dots and wires, require a deeper theoretical understanding of strongly correlated electronic systems. Realistic descriptions of aqueous actinide complexes also require the treatment of strong corelations in ways that go beyond the usual methods of quantum chemistry.This theoretical research will employ a combination of systematic analytical and numerical methods to establish phase diagrams, to study far-from-eqilibrium dynamics, and to study charge-transfer in complex materials. The role of strong electronic correlations will be investigated in three different electronic systems: layered materials such as the cuprate high temperature and organic superconductors, and quantum antiferromagnets; quantum many-body theory far-from-equilibrium as seen recently in the Kondo effect in quantum dots and Luttinger liquid behavior in quantum wires; and, aqueous plutonium complexes as found in nuclear waste.%%%This is a broad-based theoretical program with the common thread that all critically involve electrons which interact strongly. This calls for new and powerful techniques. The problems chosen are diverse and range from the physics of high temperature superconductors to the chemistry of nuclear waste materials.***

对几类分层材料的复杂实验研究，以及纳米结构（例如量子点和电线）的制造和表征的最新进展，需要对强相关的电子系统有更深入的理论理解。对actacinide水配合物水的现实描述还需要以超越通常的量子化学方法的方式处理强良好的加成。这项理论研究将采用系统的分析和数值方法的结合来建立相位图，以研究远 - 弗罗姆 - 纤毛 - 优质动力学以及研究复杂材料中的电荷转换。在三种不同的电子系统中，将研究强电子相关性的作用：层次的材料，例如高温和有机超导体，以及量子抗fiferromagnets；量子多体理论远距离平衡，如最近在量子点中的量子点和luttinger液体行为中所示。而且，在核废料中发现的p plut子络合物。%% %%这是一个基于广泛的理论程序，其共同线程所有严重的电子都涉及相互作用的电子。这需要新的强大技术。所选择的问题是多种多样的，范围从高温超导体的物理学到核废料的化学。***